195398 has 16 divisors (see below), whose sum is σ = 355104. Its totient is φ = 78720.

The previous prime is 195389. The next prime is 195401. The reversal of 195398 is 893591.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 195398.

It is an unprimeable number.

195398 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173 + ... + 648.

It is an arithmetic number, because the mean of its divisors is an integer number (22194).

2¹⁹⁵³⁹⁸ is an apocalyptic number.

195398 is a deficient number, since it is larger than the sum of its proper divisors (159706).

195398 is a wasteful number, since it uses less digits than its factorization.

195398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847.

The product of its digits is 9720, while the sum is 35.

The square root of 195398 is about 442.0384598652. The cubic root of 195398 is about 58.0283254431.

The spelling of 195398 in words is "one hundred ninety-five thousand, three hundred ninety-eight".